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3 years ago

15

HELP ASAP!

1 answer:

kolezko [41]3 years ago

8 0

Because vertical angles always equal each other. linear pairs always equals 180 degrees always. hope this helps :)

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An electret is similar to a magnet, but rather than being permanently magnetized, it has a permanent electric dipole moment. Sup

Bumek [7]

Answer:

In this question, we need to find the magnitude of the electric force on the ball; the answer is $9.21$ $*$ $10^{-3}$ N.

Step-by-step explanation:

To resolve this question, we're going to need E= $\frac{k(2p)}{r3 }$ that is the magnitude of an electric field in the axis of a dipole at some distance "r" .

where "p" is the magnitude of the electric dipole moment, so in this case p= 1.0 $*$ $10^{-7}$ Cm or what is the same $10^{-7}$ cm; and k is a constant k value is = $k=8.99$ $*$ $10^{9}$ $\frac{Nm2}{C2}$

now to get the force on the ball we need to use F=qE where $E=$ $\frac{k(2p)}{r3 }$

so we have

$F= q*$ $\frac{k(2p)}{r3 }$

for this, "q" is the charge on the ball, so we got 80nC or what si the same 80× $10^{-9}$ C, and r is the distance between the ball and the dipole, r= 25cm= 0.25m (1m=100cm, so we need to divide 25cm into 100 to get it in meters)

Replacing we got:

F=(80× $10^{-9}$ )(8.99× $10^{9}$ )(2( $10^{-7}$ )) / $(0.25)^{3}$

and calculating this the answer is $9.21$ $*$ $10^{-3}N$

4 0

2 years ago

Six less than a number w squared

Vsevolod [243]

n - a number

a number squared → n²

six lesss than → ... - 6

six less than a number w squared: n² - 6

7 0

3 years ago

Which function describes the graph

Lena [83]

Answer:

It is C f(x)= 1/4+2

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

For 9x + 25 = 88, Deena wrote a situation “I bought some shirts at the store for $9 each and received a $25 discount. My total w

aliina [53]

Answer:

She bought 7 shirts

88 kids were going on a field trip. Each car could hold 9 kids, and 25 kids decided to ride the bus. How many cars were needed?

Step-by-step explanation:

9x=63

x=7

6 0

3 years ago

Parte de Cálculo: En cada una de las siguientes proporciones, utilizar regla de tres para determinar el valor desconocido

sineoko [7]

Answer:

<u><em>x = 4</em></u>

<u><em>x = 3</em></u>

<em><u>x = 10</u></em>

<u><em>x = 3</em></u>

<em><u>x = 16</u></em>

<em><u>x = 35</u></em>

Step-by-step explanation:

$\frac{x}{5} :\frac{8}{10}$

x · 10 = 5 · 8

10x = 40

10x ÷ 10 = 40 ÷ 10

<u><em>x = 4</em></u>

$\frac{8}{12} :\frac{2}{x}$

x · 8 = 12 · 2

8x = 24

8x ÷ 8 = 24 ÷ 8

<u><em>x = 3</em></u>

$\frac{15}{3} :\frac{x}{2}$

x · 3 = 15 · 2

3x = 30

3x ÷ 3 = 30 ÷ 3

<em><u>x = 10</u></em>

$\frac{x}{6}:\frac{6}{12}$

x · 12 = 6 · 6

12x = 36

12x ÷ 12 = 36 ÷ 12

<u><em>x = 3</em></u>

$\frac{x}{8} :\frac{4}{2}$

x · 2 = 8 · 4

2x = 32

2x ÷ 2 = 32 ÷ 2

<em><u>x = 16</u></em>

$\frac{10}{2} :\frac{x}{7}$

x · 2 = 10 · 7

2x = 70

2x ÷ 2 = 70 ÷ 2

<em><u>x = 35</u></em>

5 0

2 years ago